Handset for an electrotactile vocoder for assistance with speech perception by a hearing-impaired person



FIG. 1 is a perspective view of a handset for an electrotactile vocoderfor assistance with speech perception by a hearing-impaired person,showing our new design, with the broken line showing of the hand beingfor illustrative purposes only forming no part of the claimed design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The ornamental design for a handset for an electrotactile vocoder forassistance with speech perception by a hearing-impaired person, as shownand described.